The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2017
Filed:
Oct. 05, 2011
Akinobu Sugimoto, Osaka, JP;
Eigo Kuroiwa, Osaka, JP;
Toshio Tetsuka, Hyogo, JP;
Yusuke Nishimoto, Osaka, JP;
Akinobu Sugimoto, Osaka, JP;
Eigo Kuroiwa, Osaka, JP;
Toshio Tetsuka, Hyogo, JP;
Yusuke Nishimoto, Osaka, JP;
Shimano Inc., Osaka, JP;
Abstract
A bicycle crank assembly is provided with a first sprocket, a second sprocket, a crank arm, a sprocket fixing structure and an alignment tube. The first sprocket includes a plurality of first teeth and at least one first mounting portion having a first mounting opening. The second sprocket includes a plurality of second teeth and at least one second mounting portion having a second mounting opening. The crank arm includes at least one sprocket attachment portion having a third mounting opening. The sprocket fixing structure secures the first and second sprockets to the crank arm via the first, second and third mounting openings. The alignment tube extends through at least two of the first, second and third mounting openings.